/**
 * Copyright (C) 2016 Hyphenate Inc. All rights reserved.
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.hyphenate.chatuidemo.ui;

import android.hardware.Camera;
import android.media.AudioManager;
import android.media.RingtoneManager;
import android.media.SoundPool;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.os.SystemClock;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.WindowManager;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.widget.Button;
import android.widget.Chronometer;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.SeekBar;
import android.widget.TextView;
import android.widget.Toast;
import android.text.format.DateFormat;

//import com.hyphenate.chat.EMCallManager.EMCameraDataProcessor;
import com.hyphenate.chat.EMVideoCallHelper;
//import com.hyphenate.chat.EMCallStateChangeListener;
import com.hyphenate.chat.EMClient;
import com.hyphenate.chatuidemo.DemoHelper;
import com.hyphenate.chatuidemo.R;
import com.hyphenate.exceptions.HyphenateException;
//import com.hyphenate.media.EMCallSurfaceView;
import com.hyphenate.util.EMLog;
//import com.superrtc.sdk.VideoView;

import java.io.File;

import java.util.Date;
import java.util.UUID;


public class VideoCallActivity extends CallActivity implements OnClickListener {

    private boolean isMuteState;
    private boolean isHandsfreeState;
    private boolean isAnswered;
    private boolean endCallTriggerByMe = false;
    private boolean monitor = true;

    // 视频通话画面显示控件，这里在新版中使用同一类型的控件，方便本地和远端视图切换
//    protected EMCallSurfaceView localSurface;
//    protected EMCallSurfaceView oppositeSurface;
    private int surfaceState = -1;

    private TextView callStateTextView;

    private LinearLayout comingBtnContainer;
    private Button refuseBtn;
    private Button answerBtn;
    private Button hangupBtn;
    private ImageView muteImage;
    private ImageView handsFreeImage;
    private TextView nickTextView;
    private Chronometer chronometer;
    private LinearLayout voiceContronlLayout;
    private RelativeLayout rootContainer;
    private LinearLayout topContainer;
    private LinearLayout bottomContainer;
    private TextView monitorTextView;
    private TextView netwrokStatusVeiw;

    private Handler uiHandler;

    private boolean isInCalling;
    boolean isRecording = false;
    //    private Button recordBtn;
    private EMVideoCallHelper callHelper;
    private Button toggleVideoBtn;

    //private BrightnessDataProcess dataProcessor = new BrightnessDataProcess();

    // dynamic adjust brightness
//    class BrightnessDataProcess implements EMCameraDataProcessor {
//        byte yDelta = 0;
//
//        synchronized void setYDelta(byte yDelta) {
//            Log.d("VideoCallActivity", "brigntness uDelta:" + yDelta);
//            this.yDelta = yDelta;
//        }
//
//        // data size is width*height*2
//        // the first width*height is Y, second part is UV
//        // the storage layout detailed please refer 2.x demo CameraHelper.onPreviewFrame
//        @Override
//        public synchronized void onProcessData(byte[] data, Camera camera, final int width, final int height, final int rotateAngel) {
//            int wh = width * height;
//            for (int i = 0; i < wh; i++) {
//                int d = (data[i] & 0xFF) + yDelta;
//                d = d < 16 ? 16 : d;
//                d = d > 235 ? 235 : d;
//                data[i] = (byte) d;
//            }
//        }
//    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (savedInstanceState != null) {
            finish();
            return;
        }
        setContentView(R.layout.em_activity_video_call);

        DemoHelper.getInstance().isVideoCalling = true;
        callType = 1;

        getWindow().addFlags(
                WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON | WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD
                        | WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED
                        | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);

        uiHandler = new Handler();

        callStateTextView = (TextView) findViewById(R.id.tv_call_state);
        comingBtnContainer = (LinearLayout) findViewById(R.id.ll_coming_call);
        rootContainer = (RelativeLayout) findViewById(R.id.root_layout);
        refuseBtn = (Button) findViewById(R.id.btn_refuse_call);
        answerBtn = (Button) findViewById(R.id.btn_answer_call);
        hangupBtn = (Button) findViewById(R.id.btn_hangup_call);
        muteImage = (ImageView) findViewById(R.id.iv_mute);
        handsFreeImage = (ImageView) findViewById(R.id.iv_handsfree);
        callStateTextView = (TextView) findViewById(R.id.tv_call_state);
        nickTextView = (TextView) findViewById(R.id.tv_nick);
        chronometer = (Chronometer) findViewById(R.id.chronometer);
        voiceContronlLayout = (LinearLayout) findViewById(R.id.ll_voice_control);
        RelativeLayout btnsContainer = (RelativeLayout) findViewById(R.id.ll_btns);
        topContainer = (LinearLayout) findViewById(R.id.ll_top_container);
        bottomContainer = (LinearLayout) findViewById(R.id.ll_bottom_container);
        monitorTextView = (TextView) findViewById(R.id.tv_call_monitor);
        netwrokStatusVeiw = (TextView) findViewById(R.id.tv_network_status);
//        recordBtn = (Button) findViewById(R.id.btn_record_video);
        Button switchCameraBtn = (Button) findViewById(R.id.btn_switch_camera);
        Button captureImageBtn = (Button) findViewById(R.id.btn_capture_image);
        SeekBar YDeltaSeekBar = (SeekBar) findViewById(R.id.seekbar_y_detal);

        refuseBtn.setOnClickListener(this);
        answerBtn.setOnClickListener(this);
        hangupBtn.setOnClickListener(this);
        muteImage.setOnClickListener(this);
        handsFreeImage.setOnClickListener(this);
        rootContainer.setOnClickListener(this);
//        recordBtn.setOnClickListener(this);
        switchCameraBtn.setOnClickListener(this);
        captureImageBtn.setOnClickListener(this);

        YDeltaSeekBar.setOnSeekBarChangeListener(new YDeltaSeekBarListener());

        msgid = UUID.randomUUID().toString();
        isInComingCall = getIntent().getBooleanExtra("isComingCall", false);
        username = getIntent().getStringExtra("username");

        nickTextView.setText(username);

        // local surfaceview
//        localSurface = (EMCallSurfaceView) findViewById(R.id.local_surface);
//        localSurface.setOnClickListener(this);
//        localSurface.setZOrderMediaOverlay(true);
//        localSurface.setZOrderOnTop(true);
//
//        // remote surfaceview
//        oppositeSurface = (EMCallSurfaceView) findViewById(R.id.opposite_surface);

        // set call state listener
        addCallStateListener();
        if (!isInComingCall) {// outgoing call
            soundPool = new SoundPool(1, AudioManager.STREAM_RING, 0);
            outgoing = soundPool.load(this, R.raw.em_outgoing, 1);

            comingBtnContainer.setVisibility(View.INVISIBLE);
            hangupBtn.setVisibility(View.VISIBLE);
            String st = getResources().getString(R.string.Are_connected_to_each_other);
            callStateTextView.setText(st);
       //     EMClient.getInstance().callManager().setSurfaceView(localSurface, oppositeSurface);
            handler.sendEmptyMessage(MSG_CALL_MAKE_VIDEO);
            handler.postDelayed(new Runnable() {
                public void run() {
                    streamID = playMakeCallSounds();
                }
            }, 300);
        } else { // incoming call

            callStateTextView.setText("Ringing");
//            if (EMClient.getInstance().callManager().getCallState() == EMCallStateChangeListener.CallState.IDLE
//                    || EMClient.getInstance().callManager().getCallState() == EMCallStateChangeListener.CallState.DISCONNECTED) {
//                // the call has ended
//                finish();
//                return;
//            }
            voiceContronlLayout.setVisibility(View.INVISIBLE);
        //    localSurface.setVisibility(View.INVISIBLE);
            Uri ringUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_RINGTONE);
            audioManager.setMode(AudioManager.MODE_RINGTONE);
            audioManager.setSpeakerphoneOn(true);
            ringtone = RingtoneManager.getRingtone(this, ringUri);
            ringtone.play();
        //    EMClient.getInstance().callManager().setSurfaceView(localSurface, oppositeSurface);
        }

        final int MAKE_CALL_TIMEOUT = 50 * 1000;
        handler.removeCallbacks(timeoutHangup);
        handler.postDelayed(timeoutHangup, MAKE_CALL_TIMEOUT);

        // get instance of call helper, should be called after setSurfaceView was called
//        callHelper = EMClient.getInstance().callManager().getVideoCallHelper();
//
//        EMClient.getInstance().callManager().setCameraDataProcessor(dataProcessor);
    }

    class YDeltaSeekBarListener implements SeekBar.OnSeekBarChangeListener {

        @Override
        public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
        //    dataProcessor.setYDelta((byte) (20.0f * (progress - 50) / 50.0f));
        }

        @Override
        public void onStartTrackingTouch(SeekBar seekBar) {
        }

        @Override
        public void onStopTrackingTouch(SeekBar seekBar) {
        }
    }

    /**
     * 切换通话界面，这里就是交换本地和远端画面控件设置，以达到通话大小画面的切换
     */
    private void changeCallView() {
//        if (surfaceState == 0) {
//            surfaceState = 1;
//            EMClient.getInstance().callManager().setSurfaceView(oppositeSurface, localSurface);
//        } else {
//            surfaceState = 0;
//            EMClient.getInstance().callManager().setSurfaceView(localSurface, oppositeSurface);
//        }
    }

    /**
     * set call state listener
     */
    void addCallStateListener() {
//        callStateListener = new EMCallStateChangeListener() {
//
//            @Override
//            public void onCallStateChanged(final CallState callState, final CallError error) {
//                switch (callState) {
//
//                    case CONNECTING: // is connecting
//                        runOnUiThread(new Runnable() {
//
//                            @Override
//                            public void run() {
//                                callStateTextView.setText(R.string.Are_connected_to_each_other);
//                            }
//
//                        });
//                        break;
//                    case CONNECTED: // connected
//                        runOnUiThread(new Runnable() {
//
//                            @Override
//                            public void run() {
////                            callStateTextView.setText(R.string.have_connected_with);
//                            }
//
//                        });
//                        break;
//
//                    case ACCEPTED: // call is accepted
//                        surfaceState = 0;
//                        handler.removeCallbacks(timeoutHangup);
//                        runOnUiThread(new Runnable() {
//
//                            @Override
//                            public void run() {
//                                try {
//                                    if (soundPool != null)
//                                        soundPool.stop(streamID);
//                                    EMLog.d("EMCallManager", "soundPool stop ACCEPTED");
//                                } catch (Exception e) {
//                                }
//                                openSpeakerOn();
//                                ((TextView) findViewById(R.id.tv_is_p2p)).setText(EMClient.getInstance().callManager().isDirectCall()
//                                        ? R.string.direct_call : R.string.relay_call);
//                                handsFreeImage.setImageResource(R.drawable.em_icon_speaker_on);
//                                isHandsfreeState = true;
//                                isInCalling = true;
//                                chronometer.setVisibility(View.VISIBLE);
//                                chronometer.setBase(SystemClock.elapsedRealtime());
//                                // call durations start
//                                chronometer.start();
//                                nickTextView.setVisibility(View.INVISIBLE);
//                                callStateTextView.setText(R.string.In_the_call);
////                            recordBtn.setVisibility(View.VISIBLE);
//                                callingState = CallingState.NORMAL;
//                                startMonitor();
//                            }
//
//                        });
//                        break;
//                    case NETWORK_DISCONNECTED:
//                        runOnUiThread(new Runnable() {
//                            public void run() {
//                                netwrokStatusVeiw.setVisibility(View.VISIBLE);
//                                netwrokStatusVeiw.setText(R.string.network_unavailable);
//                            }
//                        });
//                        break;
//                    case NETWORK_UNSTABLE:
//                        runOnUiThread(new Runnable() {
//                            public void run() {
//                                netwrokStatusVeiw.setVisibility(View.VISIBLE);
//                                if (error == CallError.ERROR_NO_DATA) {
//                                    netwrokStatusVeiw.setText(R.string.no_call_data);
//                                } else {
//                                    netwrokStatusVeiw.setText(R.string.network_unstable);
//                                }
//                            }
//                        });
//                        break;
//                    case NETWORK_NORMAL:
//                        runOnUiThread(new Runnable() {
//                            public void run() {
//                                netwrokStatusVeiw.setVisibility(View.INVISIBLE);
//                            }
//                        });
//                        break;
//                    case VIDEO_PAUSE:
//                        runOnUiThread(new Runnable() {
//                            public void run() {
//                                Toast.makeText(getApplicationContext(), "VIDEO_PAUSE", Toast.LENGTH_SHORT).show();
//                            }
//                        });
//                        break;
//                    case VIDEO_RESUME:
//                        runOnUiThread(new Runnable() {
//                            public void run() {
//                                Toast.makeText(getApplicationContext(), "VIDEO_RESUME", Toast.LENGTH_SHORT).show();
//                            }
//                        });
//                        break;
//                    case VOICE_PAUSE:
//                        runOnUiThread(new Runnable() {
//                            public void run() {
//                                Toast.makeText(getApplicationContext(), "VOICE_PAUSE", Toast.LENGTH_SHORT).show();
//                            }
//                        });
//                        break;
//                    case VOICE_RESUME:
//                        runOnUiThread(new Runnable() {
//                            public void run() {
//                                Toast.makeText(getApplicationContext(), "VOICE_RESUME", Toast.LENGTH_SHORT).show();
//                            }
//                        });
//                        break;
//                    case DISCONNECTED: // call is disconnected
//                        handler.removeCallbacks(timeoutHangup);
//                        @SuppressWarnings("UnnecessaryLocalVariable") final CallError fError = error;
//                        runOnUiThread(new Runnable() {
//                            private void postDelayedCloseMsg() {
//                                uiHandler.postDelayed(new Runnable() {
//
//                                    @Override
//                                    public void run() {
//                                        removeCallStateListener();
//                                        saveCallRecord();
//                                        Animation animation = new AlphaAnimation(1.0f, 0.0f);
//                                        animation.setDuration(1200);
//                                        rootContainer.startAnimation(animation);
//                                        finish();
//                                    }
//
//                                }, 200);
//                            }
//
//                            @Override
//                            public void run() {
//                                chronometer.stop();
//                                callDruationText = chronometer.getText().toString();
//                                String s1 = getResources().getString(R.string.The_other_party_refused_to_accept);
//                                String s2 = getResources().getString(R.string.Connection_failure);
//                                String s3 = getResources().getString(R.string.The_other_party_is_not_online);
//                                String s4 = getResources().getString(R.string.The_other_is_on_the_phone_please);
//                                String s5 = getResources().getString(R.string.The_other_party_did_not_answer);
//
//                                String s6 = getResources().getString(R.string.hang_up);
//                                String s7 = getResources().getString(R.string.The_other_is_hang_up);
//                                String s8 = getResources().getString(R.string.did_not_answer);
//                                String s9 = getResources().getString(R.string.Has_been_cancelled);
//                                String s10 = getResources().getString(R.string.Refused);
//
//                                if (fError == CallError.REJECTED) {
//                                    callingState = CallingState.BEREFUSED;
//                                    callStateTextView.setText(s1);
//                                } else if (fError == CallError.ERROR_TRANSPORT) {
//                                    callStateTextView.setText(s2);
//                                } else if (fError == CallError.ERROR_UNAVAILABLE) {
//                                    callingState = CallingState.OFFLINE;
//                                    callStateTextView.setText(s3);
//                                } else if (fError == CallError.ERROR_BUSY) {
//                                    callingState = CallingState.BUSY;
//                                    callStateTextView.setText(s4);
//                                } else if (fError == CallError.ERROR_NORESPONSE) {
//                                    callingState = CallingState.NO_RESPONSE;
//                                    callStateTextView.setText(s5);
//                                } else if (fError == CallError.ERROR_LOCAL_SDK_VERSION_OUTDATED || fError == CallError.ERROR_REMOTE_SDK_VERSION_OUTDATED) {
//                                    callingState = CallingState.VERSION_NOT_SAME;
//                                    callStateTextView.setText(R.string.call_version_inconsistent);
//                                } else {
//                                    if (isRefused) {
//                                        callingState = CallingState.REFUSED;
//                                        callStateTextView.setText(s10);
//                                    } else if (isAnswered) {
//                                        callingState = CallingState.NORMAL;
//                                        if (endCallTriggerByMe) {
////                                        callStateTextView.setText(s6);
//                                        } else {
//                                            callStateTextView.setText(s7);
//                                        }
//                                    } else {
//                                        if (isInComingCall) {
//                                            callingState = CallingState.UNANSWERED;
//                                            callStateTextView.setText(s8);
//                                        } else {
//                                            if (callingState != CallingState.NORMAL) {
//                                                callingState = CallingState.CANCELLED;
//                                                callStateTextView.setText(s9);
//                                            } else {
//                                                callStateTextView.setText(s6);
//                                            }
//                                        }
//                                    }
//                                }
//                                Toast.makeText(VideoCallActivity.this, callStateTextView.getText(), Toast.LENGTH_SHORT).show();
//                                postDelayedCloseMsg();
//                            }
//
//                        });
//
//                        break;
//
//                    default:
//                        break;
//                }
//
//            }
//        };
//        EMClient.getInstance().callManager().addCallStateChangeListener(callStateListener);
    }

    void removeCallStateListener() {
//        EMClient.getInstance().callManager().removeCallStateChangeListener(callStateListener);
    }

    @Override
    public void onClick(View v) {
        int id = v.getId();
        if (id == R.id.local_surface) {
            changeCallView();
        } else if (id == R.id.btn_refuse_call) {
            isRefused = true;
            refuseBtn.setEnabled(false);
            handler.sendEmptyMessage(MSG_CALL_REJECT);
        } else if (id == R.id.btn_answer_call) {
            EMLog.d(TAG, "btn_answer_call clicked");
            answerBtn.setEnabled(false);
            openSpeakerOn();
            if (ringtone != null)
                ringtone.stop();

            callStateTextView.setText("answering...");
            handler.sendEmptyMessage(MSG_CALL_ANSWER);
            handsFreeImage.setImageResource(R.drawable.em_icon_speaker_on);
            isAnswered = true;
            isHandsfreeState = true;
            comingBtnContainer.setVisibility(View.INVISIBLE);
            hangupBtn.setVisibility(View.VISIBLE);
            voiceContronlLayout.setVisibility(View.VISIBLE);
           // localSurface.setVisibility(View.VISIBLE);
        } else if (id == R.id.btn_hangup_call) {
            hangupBtn.setEnabled(false);
            chronometer.stop();
            endCallTriggerByMe = true;
            callStateTextView.setText(getResources().getString(R.string.hanging_up));
            if (isRecording) {
                callHelper.stopVideoRecord();
            }
            EMLog.d(TAG, "btn_hangup_call");
            handler.sendEmptyMessage(MSG_CALL_END);
        } else if (id == R.id.iv_mute) {
            if (isMuteState) {
                // resume voice transfer
                muteImage.setImageResource(R.drawable.em_icon_mute_normal);
//                try {
//                    EMClient.getInstance().callManager().resumeVoiceTransfer();
//                } catch (HyphenateException e) {
//                    e.printStackTrace();
//                }
                isMuteState = false;
            } else {
                // pause voice transfer
                muteImage.setImageResource(R.drawable.em_icon_mute_on);
//                try {
//                    EMClient.getInstance().callManager().pauseVoiceTransfer();
//                } catch (HyphenateException e) {
//                    e.printStackTrace();
//                }
                isMuteState = true;
            }
        } else if (id == R.id.iv_handsfree) {
            if (isHandsfreeState) {
                // turn off speaker
                handsFreeImage.setImageResource(R.drawable.em_icon_speaker_normal);
                closeSpeakerOn();
                isHandsfreeState = false;
            } else {
                handsFreeImage.setImageResource(R.drawable.em_icon_speaker_on);
                openSpeakerOn();
                isHandsfreeState = true;
            }
        } else if (id == R.id.root_layout) {
            if (callingState == CallingState.NORMAL) {
                if (bottomContainer.getVisibility() == View.VISIBLE) {
                    bottomContainer.setVisibility(View.GONE);
                    topContainer.setVisibility(View.GONE);
                  //  oppositeSurface.setScaleMode(VideoView.EMCallViewScaleMode.EMCallViewScaleModeAspectFill);

                } else {
                    bottomContainer.setVisibility(View.VISIBLE);
                    topContainer.setVisibility(View.VISIBLE);
                   // oppositeSurface.setScaleMode(VideoView.EMCallViewScaleMode.EMCallViewScaleModeAspectFit);
                }
            }
        } else if (id == R.id.btn_switch_camera) {
            handler.sendEmptyMessage(MSG_CALL_SWITCH_CAMERA);
        } else if (id == R.id.btn_capture_image) {
            DateFormat df = new DateFormat();
            Date d = new Date();
            File storage = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
            final String filename = storage.getAbsolutePath() + "/" + df.format("MM-dd-yy--h-mm-ss", d) + ".jpg";
          //  EMClient.getInstance().callManager().getVideoCallHelper().takePicture(filename);
            runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    Toast.makeText(VideoCallActivity.this, "saved image to:" + filename, Toast.LENGTH_SHORT).show();
                }
            });
        }

        /*
        case R.id.btn_record_video: //record the video
            if(!isRecording){
//                callHelper.startVideoRecord(PathUtil.getInstance().getVideoPath().getAbsolutePath());
                callHelper.startVideoRecord("/sdcard/");
                EMLog.d(TAG, "startVideoRecord:" + PathUtil.getInstance().getVideoPath().getAbsolutePath());
                isRecording = true;
                recordBtn.setText(R.string.stop_record);
            }else{
                String filepath = callHelper.stopVideoRecord();
                isRecording = false;
                recordBtn.setText(R.string.recording_video);
                Toast.makeText(getApplicationContext(), String.format(getString(R.string.record_finish_toast), filepath), Toast.LENGTH_LONG).show();
            }
            break;
        */

    }

    @Override
    protected void onDestroy() {
        DemoHelper.getInstance().isVideoCalling = false;
        stopMonitor();
        if (isRecording) {
            callHelper.stopVideoRecord();
            isRecording = false;
        }
//        localSurface.getRenderer().dispose();
//        localSurface = null;
//        oppositeSurface.getRenderer().dispose();
//        oppositeSurface = null;
        super.onDestroy();
    }

    @Override
    public void onBackPressed() {
        callDruationText = chronometer.getText().toString();
        super.onBackPressed();
    }

    /**
     * for debug & testing, you can remove this when release
     */
    void startMonitor() {
        monitor = true;
        new Thread(new Runnable() {
            public void run() {
                while (monitor) {
                    runOnUiThread(new Runnable() {
                        public void run() {
                            monitorTextView.setText("WidthxHeight：" + callHelper.getVideoWidth() + "x" + callHelper.getVideoHeight()
                                    + "\nDelay：" + callHelper.getVideoLatency()
                                    + "\nFramerate：" + callHelper.getVideoFrameRate()
                                    + "\nLost：" + callHelper.getVideoLostRate()
                                    + "\nLocalBitrate：" + callHelper.getLocalBitrate()
                                    + "\nRemoteBitrate：" + callHelper.getRemoteBitrate());

//                            ((TextView) findViewById(R.id.tv_is_p2p)).setText(EMClient.getInstance().callManager().isDirectCall()
//                                    ? R.string.direct_call : R.string.relay_call);
                        }
                    });
                    try {
                        Thread.sleep(1500);
                    } catch (InterruptedException e) {
                    }
                }
            }
        }, "CallMonitor").start();
    }

    void stopMonitor() {
        monitor = false;
    }

    @Override
    protected void onUserLeaveHint() {
        super.onUserLeaveHint();
        if (isInCalling) {
//            try {
//                EMClient.getInstance().callManager().pauseVideoTransfer();
//            } catch (HyphenateException e) {
//                e.printStackTrace();
//            }
        }
    }

    @Override
    protected void onResume() {
        super.onResume();
        if (isInCalling) {
//            try {
//                EMClient.getInstance().callManager().resumeVideoTransfer();
//            } catch (HyphenateException e) {
//                e.printStackTrace();
//            }
        }
    }

}
